Bedienungsanleitung Korg Kross 2 (Seite 44 von 152) (Englisch)

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Playing and editing Programs

Creating time-varying changes

(LFO and EG)

Using LFOs

You can use the cyclic change produced by the LFO (Low

Frequency Oscillator) to modulate numerous aspects of the

sound.

Each Program has two LFOs: LFO1 and LFO2. There is also

a single Common LFO, shared by both Oscillators. While

LFO1 and LFO2 are separate for each voice, the Common

LFO is shared by all voices in the Program. This makes it

useful when you want all of the voices to have an identical

LFO effect.

You can use these LFOs to modulate many different

Program parameters, including:

• Pitch (for vibrato)

• Filters (for wah effects)

• Volume (for tremolo)

• Pan (for auto-panning)

The LFOs can modulate many other parameters, in addition

to those listed above.

Using the basic LFO

1. Access the P-OSC LFO> 1. WAV page.

2. Select the oscillator (OSC) that you want to edit. (see

page 35)

3. Select a Waveform.

Step through the various waveforms, and notice their

shapes shown in the display.

There are a number of waveforms to choose from. Each

are suited to different applications:

Triangle and Sine are the classic LFO shapes for vibrato,

tremolo, panning, and filter wah effects.

Square is useful for gated on and off filter and amp

effects, and can create trills when modulating pitch.

The Guitar waveform is designed especially for guitar

vibrato; it bends only upwards from the base value.

Saw and Exp. (Exponential) Saw Down are good for

rhythmic filter and amp effects.

Random 1 (S/H) creates the classic sample-and-hold

effect, which is great for modulating a resonant filter.

4. After looking at the different waveforms, select

Triangle.

5. Select the Shape parameter, and use the VALUE dial

to move through its different settings, from –99 to +99.

Notice how the shape of the waveform becomes more

curved, and how –99 emphasizes the lower part of the

shape, and +99 emphasizes the upper part.

6. Select the Phase parameter, and use the VALUE dial

to sweep through its range of values.

Notice how the waveform shifts from side to side.

Among other things, this lets you offset the LFOs from

one another in time, which can create interesting organic

effects.

7. Use the Fade and Delay settings to control the way the

LFO sounds at the beginning of the note.

8. Access the P-OSC LFO> 1. FRQ page.

9. Use the FREQUENCY parameter to set the speed of

the LFO.

For more information on LFOs, please see page 39 of the

Parameter Guide.

All of these parameters control the way that the LFO

works. In order for the LFO to actually affect the sound,

you can use the dedicated LFO routings on the Filter,

Pitch, and Amp pages, or use the LFOs as AMS sources

for a wide variety of parameters.

Using EGs (Envelope Generators)

An envelope creates a modulation signal by moving from

one level to another over a specified time, and then moving

to another level over another period of time, and so on.

The Program includes three EGs, for Pitch, Filter, and Amp.

These produce time-varying changes in pitch, tone, and

volume respectively. They can also be used to modulate a

number of other program parameters via AMS.

Note: The parameters that can be modulated by an EG and

the range of values will differ depending on the EGs

provided for each section.

WaveformOSC

Level

Time

note-on

note-off

Start Level

Attack Time

Decay Time

Slope Time

Attack Level

Break Level

Release

Level

Sustain Level

Release Time

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